LR Research Petrographic Microscope
- Title
- LR Research Petrographic Microscope
- Description
- The LR is the top-of-the line petrographic microscope manufactured by Bausch and Lomb. It was one of the first polarizing microscopes to use film polarizers rather than Nicol or Ahrens prisms. The films have badly yellowed in this example. This instrument is equipped with centering lens mounts, double diaphragm condenser and Bertrand lens. The analyzer is also mounted in the tube and can be swung out of the light path. In 1970, the price was $2,089. The serial number is GD7327.
- Date
- 1963
- Original Format
- microscopes
- Extent
- Local Identifier
- LL02.48.01.29
- Creator(s)
- Subject(s)
- Spatial
- Location of Original
- Laupus Library History Collections
- Rights
-
This item has been made available for use in research, teaching, and private study. Researchers are responsible for using these materials in accordance with Title 17 of the United States Code and any other applicable statutes. If you are the creator or copyright holder of this item and would like it removed, please contact us at als_digitalcollections@ecu.edu.
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- https://digital.lib.ecu.edu/22084
- Preferred Citation
- Cite this item
- This item
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LR Research Petrographic Microscope
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- Found in theme/project
-
Laupus Health Sciences History Collections
-
Health and Medicine
-
Historic Microscopes
-
Manufacturing and Business
- Location of Original
- Historic Microscopes Collection from the Laupus Library History Collections
- View all digitized items from the Historic Microscopes Collection
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The condenser has a swing-in 1/4-wave retarder for providing circularly polarized light.